256255802008 has 32 divisors (see below), whose sum is σ = 498578319360. Its totient is φ = 123385520160.

The previous prime is 256255801969. The next prime is 256255802017. The reversal of 256255802008 is 800208552652.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5221560 + ... + 5270407.

It is an arithmetic number, because the mean of its divisors is an integer number (15580572480).

Almost surely, 2^256255802008 is an apocalyptic number.

It is an amenable number.

256255802008 is a deficient number, since it is larger than the sum of its proper divisors (242322517352).

256255802008 is a wasteful number, since it uses less digits than its factorization.

256255802008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10492087 (or 10492083 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 43.

The spelling of 256255802008 in words is "two hundred fifty-six billion, two hundred fifty-five million, eight hundred two thousand, eight".